The mirror becomes an object that they cannot live without. They fall in love with their own reflection and believe that they deserve special treatment, becoming aggressive if they don’t receive it. For the first time, a Spanish study carried out on 591 adolescents and their parents demonstrates that exposure to violence in the home, a lack of affectionate and positive communication between parents and children, and a permissive upbringing all create narcissistic adolescents who physically or verbally assault their parents.